Bentz, E; Hefler, L; Kaufmann, U; Huber, J; Kolbus, A; Tempfer, C. A polymorphism of the CYP17 gene related to sex steroid metabolism is associated with female-to-male but not male-to-female transsexualism. Fertility and Sterility. 2008, 90 (1): 56–9. PMID 17765230. doi:10.1016/j.fertnstert.2007.05.056.
Voracek, Martin; Kaden, Alice; Pietschnig, Jakob; Tran, Ulrich. Meta-analysis shows associations of digit ratio (2D:4D) and transgender identity are small at best. Endocrine Practice. April 2018, 24 (4): 386–390. PMID 29561190. doi:10.4158/EP-2017-0024.
Clayton PE, Miller WL, Oberfield SE, Ritzén EM, Sippell WG, Speiser PW. Consensus statement on 21-hydroxylase deficiency from the European Society for Paediatric Endocrinology and the Lawson Wilkins Pediatric Endocrine Society. Hormone Research. 2002, 58 (4): 188–95. PMID 12324718. doi:10.1159/000065490.
Erickson-Schroth, Laura. Update on the Biology of Transgender Identity. Journal of Gay & Lesbian Mental Health. 2013, 17 (2): 150–74. doi:10.1080/19359705.2013.753393.
Bailey JM, Vasey PL, Diamond LM, Breedlove SM, Vilain E, Epprecht M. Sexual Orientation, Controversy, and Science. Psychological Science in the Public Interest. September 2016, 17 (2): 72–73. PMID 27113562. doi:10.1177/1529100616637616.
Bentz, E; Hefler, L; Kaufmann, U; Huber, J; Kolbus, A; Tempfer, C. A polymorphism of the CYP17 gene related to sex steroid metabolism is associated with female-to-male but not male-to-female transsexualism. Fertility and Sterility. 2008, 90 (1): 56–9. PMID 17765230. doi:10.1016/j.fertnstert.2007.05.056.
Voracek, Martin; Kaden, Alice; Pietschnig, Jakob; Tran, Ulrich. Meta-analysis shows associations of digit ratio (2D:4D) and transgender identity are small at best. Endocrine Practice. April 2018, 24 (4): 386–390. PMID 29561190. doi:10.4158/EP-2017-0024.
Clayton PE, Miller WL, Oberfield SE, Ritzén EM, Sippell WG, Speiser PW. Consensus statement on 21-hydroxylase deficiency from the European Society for Paediatric Endocrinology and the Lawson Wilkins Pediatric Endocrine Society. Hormone Research. 2002, 58 (4): 188–95. PMID 12324718. doi:10.1159/000065490.
Bailey JM, Vasey PL, Diamond LM, Breedlove SM, Vilain E, Epprecht M. Sexual Orientation, Controversy, and Science. Psychological Science in the Public Interest. September 2016, 17 (2): 72–73. PMID 27113562. doi:10.1177/1529100616637616.